Colobothea carlosi Quimbayo Diaz, Taboada-Verona & Lanuza-Garay, 2025

Diaz, Sebastian Quimbayo, Bacca, Tito, Taboada-Verona, Carlos, Nearns, Eugenio H. & Lanuza-Garay, Alfredo, 2025, On the Colombian longhorned beetles (Coleoptera: Cerambycidae): A new species and new distribution records, Zootaxa 5665 (3), pp. 329-348 : 330-334

Colobothea carlosi Quimbayo Diaz, Taboada-Verona & Lanuza-Garay sp. nov.

( Figs. 1–14 )

Type material. Holotype. Female. COLOMBIA. Nariño, Samaniego , 05 ii.–6. iii. 1993. R. R. Ruales. leg (MEN- UT) ( Fig. 1–5 ).

Diagnosis: Holotype female. Integument mostly dark brown. Clypeus yellowish brown; apical third of genae reddish brown; apex of maxillary and labial palps orangish brown. antennomeres dark brown. Pronotum and sides of prothorax dark reddish brown, thoracic venter dark brown. Abdominal ventrites dark brown. Legs dark brown.

Head. Frons subparallel-sided; abundantly, finely punctate; with dense, longitudinal pale yellow pubescent band close to eyes, this pubescent band following toward area between eyes and antennal base, central area between upper eye lobes and prothoracic margin with two divergent, longitudinal pale yellow pubescent band on each side of glabrous central area. Genae 1.60 times longer than lower eye lobe, with abundant yellowish pubescence, apex densely punctured with sparse yellowish pubescence. Postclypeus with four erect setae, two in middle and one on each side. Labrum with abundant pale yellow pubescence, more scattered in central area with a short black seta on each side. Distance between upper eye lobes 0.14 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.56 times distance between outer margins of eyes. Antennal tubercles abundantly and finely punctured with yellowish pubescence partially covering the integument. Antennal length 2.65 times elytral length. Scape finely punctate, slightly widened towards apex, with pale yellow pubescence not obscuring integument dorsally and sparse whitish pubescence ventrally; with long black setae ventrally extending from antemedial to preapical region. Pedicel with short pale yellow pubescence and moderately long, erect black setae ventrally. Antennomeres III–IX with short black setae on distal margin of each antennomere; antennomeres III to VIII ventrally with short setae from base to apex, denser on antennomere III and progressively decreasing in number and length; except for antennomere VII, IX, antennomeres with dense white pubescence basally, which becomes whiter depending on intensity and angle of light, remaining surface with dark brown pubescence not obscuring integument; antennomere XI with whitish pubescence not obscuring integument. Antennal formula, based on length of antennomere III: scape=0.91; pedicel=0.05; IV=0.97; V=0.39; VI=0.30; VII=0.20; VIII=0.18; IX=0.15; X=0.13; XI=0.13.

Thorax. Prothorax 1.72 times wider than long, sides divergent. Pronotum with yellowish pubescence obscuring integument, pronotal surface slightly punctured, with arched row of coarse, deep punctures posteriorly and a pair of shallow punctures just above row of deep punctures; with two small whitish pubescent spots, one on middle, another one on antebasal area, and three small whitish pubescent spots arranged in a pair of dashed bands on each side, from anterior margin to row of deep punctures, first one near middle in following order: one antemedial, one postmedial and one antebasal; second one near lateral margin in following order: one on anterior margin, one antemedial and one antebasal; sides of prothorax with two longitudinal, narrow whitish pubescent band, from anterior to posterior margin, one near pronotum and one near prosternum. Prosternum with pale yellow pubescence not obscuring integument, narrowest area of prosternal process 0.26 times width of procoxa; mesoventrite with dense pale yellow pubescence, narrowest area of mesosternal process 0.91 times wider than mesocoxa; mesanepisternum with scattered pale yellow pubescence not obscuring integument, denser towards margins; mesepimeron with dense pale yellow pubescence not obscuring integument; metanepisternum with pale yellow pubescence, denser towards upper margin, sides of metaventrite with dense pale yellow pubescence near coxal cavities and posteriorly, central area of metaventrite with abundant pale yellow pubescence, except for glabrous metathoracic discrimen; scutellum with yellowish pubescence not obscuring integument.

Elytra. 1.75 times as long as wide across humeri, sparsely, coarsely punctured basally except smooth humeri, punctures gradually finer, and scattered posteriorly; humeri slightly prominent and elevated, humeral carina wellmarked on anterior 3/4; with dense yellowish brown pubescence partially obscuring integument throughout, with whitish maculae of pubescence in three defined transverse areas: basal third with small, isolated maculae towards central area, a convex line of irregular maculae, raised from humeri towards middle connected by a longitudinal dashed-line of maculae along sutural margin, from medial third to the apical third, lateral margin of medial third with a series of irregular maculae near humeral carina, preapical area with irregular maculae connected with sutural margin, apical area with an incomplete, angled, thin white transverse fascia anteriorly on each elytra, apices infuscated with white maculae. Epipleura with whitish pubescent maculae, distributed as follows: a small, irregularly shaped macula under humerus, a recurved line near base of epipleura, a short postbasal line near epipleural margin, a short longitudinal line under base of humeral carina, an irregular macula near base of humeral carina, a postmedial transverse band between humeral carina and the epipleural margin, a series of small, longitudinal anteapical maculae between humeral carina and epipleural margin, and a transverse band near apex. Elytral surface with very short, black setae scattered over entire surface. Elytral apex with spiniform external angle and rounded internal angle.

Legs. Pro and mesocoxae with abundant whitish pubescence on inner side, remaining surface with sparser yellowish-brown pubescence, metacoxae with abundant whitish pubescence not obscuring integument. Femora pedunculate, Profemora with abundant whitish pubescence not obscuring integument, meso- and metafemora with abundant whitish pubescence not obscuring integument (whiter depending on light intensity), scattered on outer side. Protibiae slightly curved; with short, thin, erect, dark-brown setae ventrally. Medial third of meso- and metatibiae with whitish pubescent ring partially obscuring integument; apical third of dorsal surface of mesotibiae with short, thick, erect dark setae; ventral surface of metatibiae with short, erect, dark-brown setae from basal quarter, longer toward apex. Tarsomeres I and II with whitish pubescence; protarsomere I subequal in length to II and III together; meso- and metatarsomere I 1.3 times longer than II–III together.

Abdomen. Sides of ventrites 1–4 with dense pale-yellow pubescence, sparser toward middle; with abundant pale-yellow pubescence basally and orangish-yellow pubescent maculae laterally. Ventrite 5 longer than 3–4 together, with pale yellow pubescence, not obscuring integument, sides slightly convergent, apex of ventrite 5 slightly concave, outer angles with a short spine.

Figures

FIGURES 1–5. Colobothea carlosi sp. nov. Holotype female. 1. dorsal view; 2. ventral view; 3. frontal view; 4. lateral view; 5. last ventrite ventral view.

FIGURES 6–13. Colobothea spp. Pronotum: 6. Colobothea carlosi; 7. Colobothea darianita; Humeri: 8. Colobothea carlosi; 9. Colobothea darianita; Ventrite 5: 10. Colobothea carlosi; 11. Colobothea darianita; Epipleural región: 12. Colobothea carlosi; 13. Colobothea darianita.

FIGURE 14. Location of the type-locality of Colobothea carlosi sp. nov.